really rare bow mod

hey my m8 just bought a bow with a really random armor penetration mod which i haven't seen before and had an armor penetration of

10/10 instead of a 20/20 or whatever and was thinking are these worth anything or not

thanks any help would be great

10/10 is just the old sundering mod before they updated it to 20/20's. imo, it isn't worth that much, maybe a couple k to a collector but thats it

Can go as high as 10k, just have to find a buyier.